Por un escritor de hombre misterioso
The basics behind the Petzl GriGri, one of climbing's most popular belay devices.
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Petzl Grigri - Belay Devices
A Comprehensive Guide to Belay Devices
Designed for the experienced belayer, the GRIGRI is a belay device with assisted braking designed for belaying both in the gym and at the crag. Compact and lightweight, it can be used with single ropes from 8.5 to 11 mm. The assisted braking function improves comfort while belaying, holding a climber or catching a fall.
Petzl - Grigri Belay Device Gray
Review: Petzl GriGri+ - Black Sheep Adventure Sports
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